Information processing filters out the noise in data but it takes time. Hence, low precision signals are available before high precision signals. We analyze how this feature affects asset price informativeness when investors can acquire signals of increasing precision over time about the payoff...

Black et Scholes ont proposé en 1973 un modèle de marché financier qui conduit à une formule simple pour calculer le prix d'une option européenne sur un actif boursier. Bien que les formules de Black-Scholes soient explicites, le modèle repose sur certaines hypothèses qui ne correspondent...

L'objectif de cet article est de confronter deux mesures classiques du risque de défaillance de l'émetteur, la notation et l'écart de rentabilité. La première est attribuée par des agences spécialisées dans cette activité (Standard and Poor's et Moody's) alors que la seconde résulte du...

French abstract: Le présent papier formalise un nouveau modèle de dynamique du système des prix du marché action, capable de saisir un large spectre de phénomènes renseignés par la littérature académique financière. Le modèle s’attache particulièrement à rendre compte de trois...

In this paper, we try to build an efficient portfolio among four possible portfolios based on the some 31 Casablanca listed shares. Our analysis concerns the risk which arises from the Markowitz mean-variance approach. Our work method will be implemented as following: first of all, we will test...

The performance measurement of portfolio managers is a topic of major importance in finance. The utility of performance measures rests, indeed, on the hypothesis that funds whose performance is judged " good " (or " bad ") in the past, will continue to display of good (bad) performances in the...

The financial market interest several researchers, especially in the domain of assessment of the financial assets and their performances. The previous research identified several anomalies of the market, as size, Monday, January, PER effects, etc. putting in question the notion of market...

The management of financial risks, which is a branch of financial theory, is defined as a process that begins with risk factors identification, continues with measurement of risk and concludes with the coverage of that risk. This work focuses on the second phase of management process, namely the...

The West African Regional Securities Exchange (BRVM) is the common financial center for eight countries of the West African Economic and Monetary Union (WAEMU). It began its activities on 18th September 1998 and has undergone significant changes over the last three years (continuous quotation,...

The financial market interest several researchers, especially in the domain of assessment of the financial assets and their performances. The previous research identified several anomalies of the market, as size, Monday, January, PER effects, etc. putting in question the notion of market...